/*
 * Copyright (c) 2025 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "napi/native_api.h"
#include "native_common.h"
#include "background_process_manager/background_process_manager.h"


// 压制接口
static napi_value SetProcessPriority(napi_env env, napi_callback_info info)
{
    size_t argc = 2;
    napi_value args[2] = {nullptr};

    napi_get_cb_info(env, info, &argc, args , nullptr, nullptr);

    napi_valuetype valuetype0;
    napi_typeof(env, args[0], &valuetype0);

    napi_valuetype valuetype1;
    napi_typeof(env, args[1], &valuetype1);

    int pid;
    napi_get_value_int32(env, args[0], &pid);

    int priority;
    napi_get_value_int32(env, args[1], &priority);
    
    int ret = 0;
    switch (priority) {
        case 1:
            ret = OH_BackgroundProcessManager_SetProcessPriority(pid, PROCESS_BACKGROUND);
            break;
        case 2:
            ret = OH_BackgroundProcessManager_SetProcessPriority(pid, PROCESS_INACTIVE);
            break;
        default:
            break;
    }
    napi_value sum;
    napi_create_double(env, ret, &sum);
    return sum;
}

//解除压制接口
static napi_value ResetProcessPriority(napi_env env, napi_callback_info info)
{
    size_t argc = 2;
    napi_value args[2] = {nullptr};

    napi_get_cb_info(env, info, &argc, args , nullptr, nullptr);

    napi_valuetype valuetype0;
    napi_typeof(env, args[0], &valuetype0);

    napi_valuetype valuetype1;
    napi_typeof(env, args[1], &valuetype1);

    int pid;
    napi_get_value_int32(env, args[0], &pid);
    
    int ret = 0;
    ret = OH_BackgroundProcessManager_ResetProcessPriority(pid);
    
    napi_value sum;
    napi_create_double(env, ret, &sum);
    return sum;
}


EXTERN_C_START
static napi_value Init(napi_env env, napi_value exports)
{
    napi_property_descriptor desc[] = {
        { "setProcessPriority", nullptr, SetProcessPriority, nullptr, nullptr, nullptr, napi_default, nullptr },
        { "resetProcessPriority", nullptr, ResetProcessPriority, nullptr, nullptr, nullptr, napi_default, nullptr },
    };
    napi_define_properties(env, exports, sizeof(desc) / sizeof(desc[0]), desc);
    return exports;
}
EXTERN_C_END

static napi_module demoModule = {
    .nm_version = 1,
    .nm_flags = 0,
    .nm_filename = nullptr,
    .nm_register_func = Init,
    .nm_modname = "backgroundprocessmanagerndk",
    .nm_priv = ((void*)0),
    .reserved = { 0 },
};

extern "C" __attribute__((constructor)) void RegisterEntryModule(void)
{
    napi_module_register(&demoModule);
}